Principles of Microbiology; A Treatise on Bacteria, Fungi and Protozoa Pathogenic for Domesticated Animals

Principles of Microbiology; A Treatise on Bacteria, Fungi and Protozoa Pathogenic for Domesticated Animals

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 edition. Excerpt: ...well as in active ones, due to the fact that the conjunctiva and possibly skin have been sensitized by some previous infection, however slight. If it is demonstrated that this reaction occurs simply as the result of anaphylaxis it would not indicate the presence of active tuberculosis. This method of applying tuberculin has been tested in cattle by MeCampbell and White 27 and others but it was found not to be very satisfactory. Intradermal test. Moussu and Mantoux Js injected tuberculin into the skin and produced in tuberculous animals a local oedema and swelling which began in a few hours and reached its maximum in forty-eight hours; this indicated a reaction. This method eliminates the necessity of taking temperatures. Ward and Baker 20 found this method to be accurate in a large percentage of many cases tested by them and to be practicable for range cattle. The subcutaneous injection of tuberculin is the only method at present that can be relied upon in testing dairy cattle. The other procedures are still in the experimental stage so far as cattle are concerned. Theory for the reaction of tuberculin. The use of tuberculin has demonstrated three distinct and interesting phenomena: First, a marked sensitiveness of the tuberculous individual and a comparative indifference of the healthy body to it. Second, a distinct thermal reaction of the tuberculous "MeCampbell and White. Jour. Exp. Med., Vol. X (1908) p. 232. a Moussu and Mantoux. Trans. 6th. International Congress on Tuberculosis, Vol. IV (1908) p. 821. "Ward and Baker. Proceedings Am. Vet. Med. Asso., 1910, p. individual, that is, a general effect. Third, a hyperemia of the tuberculous focus. These can be demonstrated in the tuberculous guinea pig. The extent of the hyperemia more

Product details

  • Paperback | 162 pages
  • 189 x 246 x 9mm | 299g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236589297
  • 9781236589293